Safety razor



Aug. 29, 1,933. G TAYLOR I 1,924,335

SAFETY RAZOR Filed June 11, 1932 GTAIZOR Patented Aug. '29, 1933 UNITED STATES SAFETY RAZ OR George Taylor, Penwortham, Preston, England Application June 11, 1932, Serial No. 616,715, and

in Great Britain September 22, 1931 1 10 Claims.

This invention relates to a safety razor having a reciprocating blade carrier to which the blade is secured by means of a backing plate, the invention being particularly concerned with the means by which the backing plate is secured to the razor.

The object of the invention is to provide a simple means of attaching the backing plate with the blade beneath it so as to secure ready detachment for cleaning or replacement.

The features of the present invention will be better understood from the accompanying drawing which illustrates one form of the invention:

Fig. 1 is a side elevation showing the complete razor with a reciprocating blade;

Fig. 2 is a plan view of Fig. 1 with the blade, cover plate and part of the blade carrier removed;

Fig. 3 is a sectional view of Fig. 2 on the line A'-A with blade and cover plate in position;

Fig. 4 is a sectional view taken on the line B-B of Fig. 3.

Referring to Figs. 1, 2, 3 and 4, 1 is a handle connected with a bridge piece 2; the two end plates 3 and 4, support the carrier 5 by means of projecting pins 6, 7; the carrier also has the pin 8 working in the cam groove 9 of the roller 10, while 11 is a guard roller for preventing injury from the inoperative side of the blade 12; 13 is a backing plate provided with a stem 14 near the end of which shoulders are provided formed by a circumferential groove 15, while the carrier has the central hole 16 into which the stem 14 is passed so that the groove 15 projects beneath the carrier 5.

Mounted on the carrier by the screws 17 is the locking plate 18 provided with an extension 18a which projects outside of the razor'frame by passing through and beyond the end plate 4 so that it can always be engaged irrespective of where the carrier stops during its reciprocation, the extension being of rectangular cross section and working in a rectangular hole in the end. plate 4, so that limitation of the tilting of the carrier 5 is obtained. The locking plate 18 is provided with springs 19 working in slots of the plate against the abutment pins 17, while the central hole 20 surrounds the groove 15 of the stem 16, the normal position of the springs 19 being such as to push the edge of the locking plate into the groove 15* when the backing plate is in position.

The end of the stem 14 is provided with cam surfaces 14a which as the stem is pushed into place, engage with the edge of the hole 20 so as so cause the locking plate to move automatically against the pressure of the springs 19 until the groove 15 coincides with the hole 20, whereupon the locking plate shoots to the right to engage the groove.

The blade 12 is bent owing to the pressure of the backing plate 13 being pushed into place far enough for the groove 15 to engage the locking plate 18. Consequently on being released, owing to pressure on the end 1811 of the locking plate as shown in Fig. 2, the tendency of the backing plate is to be shot out of engagement owing to the straightening out of the blade 12 upon release from its fixing.

It will be noted that when the razor is being assembledinto the position shown in Fig. 4, the double edged blade 12 guides inself on the periphery of the end plates 3 and 4, so as to acquire the necessary set without any appreciable friction on the moving parts.

From the preceding description it will be seen that a single pressure on the locking plate direct sufiices to immediately release the blade from its holder, and a similar pressure on the backing plate returns it to place. Consequently, replacement, or removalfor cleaning, is attained very quickly and by means of a device so simple that.

it is not likely to get out of order.

It will be understood that the invention is not extension on the said locking plate, projecting through and beyond one of ,the said'end plates topermit of the locking plate beingreleased from the said shoulders irrespectiveof where thecarrier stops during its reciprqcation.

reciprocating blade carrier moving between end plates on the razor frame,gthe combinationwith a backing plate including astem adapted to pass through the carrier for securing the .blade thereto, of shoulders on the saidv stem formed by a circumferentialgroove in the said stem and a spring pressed locking plate slidably'mounted on and under the carrier-tomove parallel therewith and apertured to receive the saidstem;-cam means on the said stem for engaging the aperture on the said-plate so as to'cause'thelocking plate to move and automaticallyengage' the said groove under the spring action, means normally holding the locking plate in position against the spring action for the aperture to re ceive the said cam means, and "an extension on the said locking plate, projecting throu'gli' and beyond one of thesaid endiplates topermitof the locking plate being released from the said 1100 '2. In a safety razor including a razor frame a plates to limit the rocking movement of the carrier and to permit of the locking platebeing released from the said shoulders irrespective of where the carrier stops during its reciprocation.

4. In a safety razor including a reciprocating blade carrier and a frame supporting the carrier, the combination with a backing plate including a stem adapted to passthrough the carrier for securing the blade thereto, of shoulders on the said stem formed by a circumferential groove in the said stem, a locking plate slidably mounted ,on the carrier to move parallel therewith and apertured to receive the said stem. spring means between the carrier and the looking plate urging the locking plate into a position to engage the said groove, cam means on the said stem for engaging the aperture in the said plate, so as to cause the locking plate to move and automatically engage the said groove ,under the spring action, and an extension on the locking plate projecting outside of the said frame to permit of the locking plate being released from the shoulders irrespective of where the carrier stops during its reciprocation.

5. In a safety razor including a razor frame comprising end plates connected by a bridge piece for attachment to a handle, and a reciprocating blade carrier mounted to move between the end plates, the combination with a backing plate including a stem adapted to pass through the carrier for securing the blade thereto, of shoulders on the stem formed by a circumferential groove in the stem, a slidable locking plate apertured to receive the said stem, abutment pins on the underneath of the carrier engaging in slots in the locking plate, springs housed in the said slots between the abutment pins and the ends ofthe slots so as to urge the opposite ends of the slots into engagement with the abutment pins, cam I surfaces on the ends of the said stem for engaging the said aperture so as to cause the locking plate to move and automatically engage the said groove under the spring action, and an'extension onthe locking plate projecting outside of the razor frame to permit of the locking plate being released from the shoulders irrespective of where the carrier stops during its reciprocation.

6. In a safety razor including arazor frame comprising end plates connected by .a bridge piece for attachment to a handle.- and a reciprocating blade carrier mounted in and to move between the end plates, the combination with a backing plate including a stem adapted to pass through the carrier for securing the bladethereto, of shoulders on the stem formed by a circumferential groove in the stem, a slidable locking plate apertured to receive the said stem, abutment pins on the underneath of the carrier engaging in slots in the' locking'plate, springs housed in the said slots between the abutment pins and ends of the slots so as to urge the oppo-' reciprocating site ends of the slots into engagement with the abutment pins, cam surfaces on the ends of the said stem for engaging said aperture so as to cause the locking plate to move and automatically engage the said groove under the spring action, and an extension on the locking plate projecting through and beyond one of the end plates to permit of the locking plate being released from the shoulders irrespective of where the carrier stops during its reciprocation.

"I. In a safety razor, the combination of a razor frame including end plates, the upper peripheries of which are curved convexly, a reciprocating blade carrier mounted to move between the end plates, a curved backing plate including a stem adapted to pass through the carrier for securing the blade thereto, the carrier and the backing plate being so shaped as to bend the blade substantially to the curve of the end plates, whereby the blade is guided by the end plates and tensioned, shoulders on the stem of the backing plate, a spring pressed locking plate slidably mounted on the carrier for engaging the said shoulders, and an extension on the locking plate, projecting outside of the razor frame to permit of the locking plate being released from its shoulders, irrespective of where the carrier stops during its reciprocation, whereby the tensioned blade may be automatically shot oif the carrier.

8. In a safety razor, the combination of a razor frame including end plates, the upper peripheries of which are curved convexly, a reciprocating blade carrier mounted to move between the end plates, a curved backing plate including a stem adapted to pass through the carrier for securing the bl de thereto, the carrier and the backing plate so shaped as to bend the blade substantially to the the blade is guided-by sioned, shoulders on the stem of the backing plate, formed by a circumferential groove in the said stem, a locking plate slidably mounted on the carrier to move parallel therewith and apertured to receive the said stem, spring means between the carrier and the locking plate urging the locking plate into a position to engage the said groove, cam means on the said stem for enseeing the aperture in the said locking plate, and an extensionon the locking plate projecting outside of the razor frame to permit of the locking plate being released from its shoulders, whereby the tensioned blade may be automatically shot of! the carrier.

curve of the end plates, whereby 9. In the structure according to claim 5, curv-' the end plates and tenplate so as to bend the blade substantially to the curve of the end plates, whereby the blade is guided by the end plates and tensioned so as to shoot of! thecarrier when the locking plate is released.

10. In a safety razor including a frame with end plates attached to a handle by a bridge piece. a blade carrier mounted centrally of and moving between ing plate including a stem passing centrally through the carrier, a locking plate for the blade mounted to reciprocate on the said carrier against the action of aspring and co-operating with the stem to secure and an extension on the outside the said frame.

GEORGE TAYLOR.

the said end plates, a back-.

the blade on the carrier, 1 locking pla p oiectin 

